* {
    margin: 0;
    padding: 0;
}

body {
    background: #17A086;
    display: flex;
    justify-content: center;
    align-items: center;
}

div {
    float: left;
}

.candidate {
    position: absolute;
    display: flex;
    justify-content: center;
    align-items: center;
    left: 50px;
    top: 20px;
    width: 400px;
    height: 800px;
    outline: 1px solid #DFDFDF;
}

.chess-place {
    width: 330px;
}

.box {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: auto;
    top: 20px;
    width: 800px;
    height: 860px;
}

.chess-board {
    position: absolute;
    top: 0;
    width: 800px;
    height: 800px;
    outline: 1px solid #DFDFDF;
}

.chess-board div {
    float: left;
    width: 40px;
    height: 40px;
    outline: 1px solid #DFDFDF;
}

.chess-confirm {
    position: absolute;
    bottom: 0;
}

.chess-confirm button {
    width: 200px;
}

.exhibition {
    position: absolute;
    display: flex;
    justify-content: center;
    align-items: center;
    top: 20px;
    right: 75px;
    width: 400px;
    height: 500px;
}

.exhi-content {
    position: absolute;
    display: flex;
    justify-content: center;
    align-items: center;
    top: 0;
    width: 400px;
    height: 400px;
    outline: 1px solid #DFDFDF;
}

.exhi-operate {
    position: absolute;
    display: flex;
    justify-content: center;
    align-items: center;
    bottom: 0;
    width: 400px;
    height: 100px;
}

.exhi-operate button {
    margin: 10px;
}
